Add option to disable Extended Master Secret
Add SSL_OP64_NO_EXTENDED_MASTER_SECRET, that can be set on either an SSL or an SSL_CTX. When processing a ClientHello, if this flag is set, do not indicate that the EMS TLS extension was received in either the ssl3 object or the SSL_SESSION. Retain most of the sanity checks between the previous and current session during session resumption, but weaken the check when the current SSL object is configured to not use EMS. Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/3910)
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